I wouldn't do it if it's just "for the hot weather" but if you think that you can keep your child up-to-date with what's going on in the classroom, then yeah, sure, why not? She only gets one childhood and there really are things that are more important than sitting in a classroom. Be a bit rebellious. Live a little. I think you are being responsible in collecting her assignments and doing her schoolwork with her but the world can be a wonderful classroom--sometimes even better than the four walls she's sitting inside every day. In my home place we have holiday in primary and secondary school from mid-May to late August so that's 8-10 weeks of summer holiday. I personally don't think 5 weeks of summer holiday is extreme in the least. If your daughter is doing well in school and not struggling, shouldn't be an issue in P1.